Dear Arj. I never had the opportunity to heard that tonearm with a MM/MI. Said it and looking to your Nagaoka one and due that the tonearm is a removable headshell design and that the Nagaoka MP-30 is not a typical high/very high compleance cartridge design I can't see how this tonearm/cartridge/headshell combination could give you a " wrong/bad " match. Of course that is only an opinion with no first hand experiences about.
Regards and enjoy the music,
Raul.
Regards and enjoy the music,
Raul.